Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		36 Months Ended
Restructuring (Textuals) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Severance charges	$ 17.1	$ 11.5	$ 23.1	$ 21.5
Subsequent Event [Member] \| DN Now Plan [Member]
Restructuring Cost and Reserve [Line Items]
Anticipated Annual Synergies					$ 500.0